EP2342428A2 - Turbocompresseur à double entrée - Google Patents

Turbocompresseur à double entrée

Info

Publication number
EP2342428A2
EP2342428A2 EP09778487A EP09778487A EP2342428A2 EP 2342428 A2 EP2342428 A2 EP 2342428A2 EP 09778487 A EP09778487 A EP 09778487A EP 09778487 A EP09778487 A EP 09778487A EP 2342428 A2 EP2342428 A2 EP 2342428A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
turbine
channel
turbine housing
twinscroll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09778487A
Other languages
German (de)
English (en)
Other versions
EP2342428B1 (fr
Inventor
Thomas Fahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP2342428A2 publication Critical patent/EP2342428A2/fr
Application granted granted Critical
Publication of EP2342428B1 publication Critical patent/EP2342428B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/005—Cooling of pump drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/14—Casings modified therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026—Scrolls for radial machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F02B37/025—Multiple scrolls or multiple gas passages guiding the gas to the pump drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/12—Light metals
    • F05D2300/121—Aluminium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a twin-scroll turbocharger with the features of the preamble of patent claim 1.
  • twin-scroll turbocharger for a multi-cylinder internal combustion engine.
  • the twinscroll exhaust gas turbocharger has a turbine housing with first and second intake passages separated by the turbine housing. Both inlet channels open in each case into a first and a second spiral channel, which extend radially outward, largely parallel to one another about a rotatably mounted exhaust gas turbine. Both intake ports are acted upon by exhaust gas of different cylinders of the internal combustion engine in accordance with the firing order of the internal combustion engine, whereby a more uniform drive of the exhaust gas turbine takes place.
  • the gas inlet channels and the spiral channels are arranged such that the exhaust gas is passed from opposite sides to the exhaust gas turbine.
  • a disadvantage of the known design is a high temperature load of the turbine housing, in particular in the region of the spiral channels.
  • the turbine housing can be made in a further particularly preferred embodiment of a light metal material, in particular aluminum.
  • a light metal material in particular aluminum.
  • the sealing problem is significantly simplified in an embodiment according to claim 3, as a simpler thermal connection of the exhaust gas turbocharger to the cylinder head and the crankcase is possible if they are also made of a light metal material (same or similar thermal expansion coefficient).
  • the embodiment according to claim 4 is used for heating the turbine housing after a cold start of the internal combustion engine, whereby the energy loss is reduced in the catalyst heating.
  • the recuperated energy from the battery of a mild hybrid can be used.
  • the heating element according to claim 5 is a particularly preferred heating element.
  • Fig. 1 shows the top view of a wireframe model of gas leading
  • FIG. 1 shows a three-dimensional plan view of a wire grid model of gas-carrying channels for a twinscroll exhaust gas turbocharger according to the invention for an internal combustion engine. Shown in the wireframe model are a first gas inlet channel 1 and a second gas inlet channel 1 ', wherein the first gas inlet channel merges into a first spiral channel 2 and the second gas inlet channel 1' into a second spiral channel 2 '. Of the two spiral channels 2, 2 'an exhaust gas turbine chamber 5 is largely enclosed, in which an exhaust gas turbine, not shown, can be arranged. An axis of rotation of the exhaust turbine is numbered 3.
  • spiral channels wrap around the exhaust gas turbine chamber 5 radially outward, each with a wrap angle smaller than 180 °, wherein the spiral channels 2, 2 'are not arranged parallel to each other.
  • the gas inlet ducts 1, 1 ' at least partially parallel to each other in the turbine housing, not shown, and arranged radially spaced from each other with respect to the rotation axis 3.
  • the first spiral channel 2, which adjoins the closer to the axis of rotation 3 arranged first gas inlet channel 1 extends almost 180 ° to the exhaust gas turbine.
  • the second spiral channel 2 ', which adjoins the second gas inlet channel V, which is farther from the rotation axis 3, extends largely around the remaining circumference around the exhaust gas turbine.
  • a meaningful wrap angle of the spiral channels 2, 2 'around the exhaust gas turbine chamber 5 is between 90 ° and 180 °, so that no intersection of the spiral channels 2, 2' takes place.
  • the turbine housing has at least one coolant channel (not shown in FIG. 1), at least between the gas inlet channels 1, 1 ', through which a coolant can flow.
  • a coolant may be, for example, a liquid or gaseous coolant.
  • the liquid coolant used is preferably a combustion engine-own coolant. Cooling with air is also possible. By this measure, overheating of the turbine housing is further reduced.
  • a heating element preferably a PTC (positive temperat ⁇ re coefficient) are arranged.
  • PTC positive temperat ⁇ re coefficient
  • This measure serves to heat the turbine housing after a cold start of the internal combustion engine and thus leads to a reduction of the energy loss during catalyst heating.
  • the recuperated energy from the battery of a mild hybrid, as defined above, can be used for this purpose.
  • a water-cooled twinscroll exhaust-gas turbocharger can be represented, for example, with a wastegate.
  • the inventive design leads to a reduction in the weight of the exhaust gas turbocharger and the cost, since cheaper materials, such as light metal materials for the manufacture of the turbine housing can be used.
  • a simpler thermal connection of the exhaust gas turbocharger to achtmetali cylinder head or a light metal crankcase due to the same or similar thermal expansion coefficients is possible.
  • the seal between a light metal cylinder head or a light metal crankcase and a light metal turbine housing is much less critical with respect to thermal distortion and thus leaks.
  • Another advantage is the lower heat input into the engine compartment to mention, so that the heat protection measures in the engine compartment can be reduced, which also creates a cost and weight advantage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

L'invention concerne un turbocompresseur à double entrée pour un moteur à combustion interne, comprenant un carter de turbine et des premier et second conduits d'admission de gaz (1, 1') qui sont séparés par le carter de turbine et débouchent dans des premier et second conduits hélicoïdaux (2, 2') s'étendant radialement à l'extérieur autour d'une turbine à gaz d'échappement du turbocompresseur à double entrée, cette turbine pouvant tourner autour d'un axe de rotation (3). Selon l'invention, les conduits d'admission de gaz (1, 1') sont espacés au moins partiellement parallèlement l'un à l'autre dans le carter de turbine et radialement par rapport à l'axe de rotation (3). Le premier canal hélicoïdal (2), qui est raccordé au premier canal d'admission de gaz (1) situé le plus près de l'axe de rotation (3), s'étend jusqu'à 180° autour de la turbine à gaz d'échappement, et le second canal hélicoïdal (2'), qui est raccordé au second canal d'admission de gaz (1') qui est plus éloigné de l'axe de rotation (3), s'étend jusqu'à 180° autour du reste de la circonférence de la turbine à gaz d'échappement. Cette configuration de turbocompresseur à double entrée selon l'invention permet de réduire de façon significative la charge thermique subie par le carter de turbine.
EP09778487.0A 2008-11-07 2009-09-11 Turbocompresseur à double entrée Active EP2342428B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008056358A DE102008056358A1 (de) 2008-11-07 2008-11-07 Twinscroll-Abgasturbolader
PCT/EP2009/006612 WO2010051876A2 (fr) 2008-11-07 2009-09-11 Turbocompresseur à double entrée

Publications (2)

Publication Number Publication Date
EP2342428A2 true EP2342428A2 (fr) 2011-07-13
EP2342428B1 EP2342428B1 (fr) 2014-06-25

Family

ID=42096413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09778487.0A Active EP2342428B1 (fr) 2008-11-07 2009-09-11 Turbocompresseur à double entrée

Country Status (4)

Country Link
US (1) US8333550B2 (fr)
EP (1) EP2342428B1 (fr)
DE (1) DE102008056358A1 (fr)
WO (1) WO2010051876A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101678010B1 (ko) * 2009-09-10 2016-11-21 보르그워너 인코퍼레이티드 배기가스 터보차저의 터빈 휠의 배기가스 공급 장치
JP5609795B2 (ja) * 2011-07-12 2014-10-22 株式会社デンソー 車両用過給装置
US9828913B2 (en) 2013-08-16 2017-11-28 Wescast Industries, Inc. Turbine housing
JP6315020B2 (ja) * 2016-04-05 2018-04-25 トヨタ自動車株式会社 内燃機関
US10662904B2 (en) 2018-03-30 2020-05-26 Deere & Company Exhaust manifold
US11073076B2 (en) 2018-03-30 2021-07-27 Deere & Company Exhaust manifold
DE102018209078A1 (de) 2018-06-07 2019-06-13 Audi Ag Turbine für einen Abgasturbolader, Abgasturbolader für eine Antriebseinrichtung sowie entsprechende Antriebseinrichtung
US20220412221A1 (en) * 2021-06-23 2022-12-29 International Engine Intellectual Property Company, Llc Multiple Scroll Entry Turbine Turbocharger

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2384251A (en) * 1943-01-14 1945-09-04 Wright Aeronautical Corp Liquid cooled supercharger
US2861774A (en) * 1950-02-16 1958-11-25 Alfred J Buchi Inlet control for radial flow turbines
US3010697A (en) * 1958-06-16 1961-11-28 Thompson Ramo Wooldridge Inc Turbocharger
JPS57137619A (en) * 1981-02-18 1982-08-25 Hitachi Ltd Exhaust bypass device of turbocharger for multi- cylinder engine
JPH03151519A (ja) 1989-11-08 1991-06-27 Toyota Motor Corp ターボチャージャ付多気筒エンジン
US5340286A (en) * 1990-10-29 1994-08-23 Wojceich Kanigowski Balanced turbocharger
DE4242494C1 (en) * 1992-12-16 1993-09-09 Mercedes-Benz Aktiengesellschaft, 70327 Stuttgart, De Adjustable flow-guide for engine exhaust turbocharger - has axially-adjustable annular insert in sectors forming different kinds of guide grilles supplied simultaneously by spiral passages
DE19653057A1 (de) * 1996-12-19 1998-06-25 Asea Brown Boveri Radialturbine eines Turboladers
DE50303860D1 (de) * 2003-11-28 2006-07-27 Borgwarner Inc Gehäuse für Turbolader
FR2878562B1 (fr) * 2004-11-30 2007-04-06 Renault Sas Organe d'echappement d'un moteur a combustion interne de vehicule automobile pourvu d'un dispositif de chauffage
WO2007035972A2 (fr) * 2005-09-27 2007-04-05 Avl List Gmbh Moteur a combustion interne a suralimentation a deux etages
DE102007034235A1 (de) * 2007-07-23 2009-01-29 Continental Automotive Gmbh Strömungsgehäuse eines Turboladers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010051876A2 *

Also Published As

Publication number Publication date
EP2342428B1 (fr) 2014-06-25
US20110236198A1 (en) 2011-09-29
US8333550B2 (en) 2012-12-18
WO2010051876A2 (fr) 2010-05-14
WO2010051876A3 (fr) 2011-03-24
DE102008056358A1 (de) 2010-05-12

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